Press for molding building-blocks



J. H. PERRIN. PRESS FOR MOLDING BUILDING BLOCKS. APPLIUATION nun SEPT. 24.1902. m 110mm.

PATBNTED FEB. 15,1904.

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, ATTORNEY J. H. PERRIN. PRESS FOR MOLDING BUILDING BLOCKS.

APPLICATION FILED SEPT 24, 1803. I N0 MODEL. 2 SHBET fi-SHEBE 2.

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PATBNTED FEB. 16, 1904.

Patented February 16, 1904.

' UNITED STATES PATENT OFFICE.

JAME H. PERRIN, OF COLUMBUS, OHIO, AssIoNoR Drona-HALF TO COLONEL E. BRIGHT, OF COLUMBUS, OHIO.

PRESS FOR MOLDiNG BUlLDlNG-BLOOKS- SPECIFICATION forming part of Letters Patent No. 752,298, dated'Febzfiry 16, 1904.

Application filedfleptamherz 1903. Serial No. 174,477. on model.)

To all whom it may concern: 4

Be it known that 1, JAMES H. PERRIN, a citizen of the United States, residing at Columbus, in thecounty of Franklin and State of Ohio, have invented a new and useful Improve? ment in Presses for Molding Building-Blocks, of which the following is a specification. Y This invention relates to presses for molding blocks which are to be used in the contruction of buildings; and it has for its obje'cts the production of a press for that purpose which is simple and strong in" construction and which is conventient and rapidin ,1

oration.

height for convenient operation.

These objects I attain in the struc: ture shown in the accompanying drawings, in which- Figure 1 is a perspective view of my press, one of the side pieces of the-mold beingbroken away in part in order that the interior of the mold'may be more clearly seen.' Fig. 2 is a bottom plan view of the side pieces of the mold and of the various levers for operating the same. Fig. 3 is a transverse section through the mold with the levers shown in Fig. 2 omitted and showing the system of levers for lifting the bottom frame. Fig. 4 is a sectional View on the line a 4 of Fig.

Figs. 5 and 6 are plan and central longitudinal sectional views. respectively, of the bottom frame of the mold; and Fig.- 7 'isa detail view.

Similar reference characters designate corresponding parts throughout the several views of the drawings, in Which v 1 represents the main frame, which is supported :upon any suitable kind. of legs or supports 100, so as to bring the press toa proper The size and form of the main frame 1 will be "tried with the sizes and forms of the blocks which it is desired to mold on the press. I

2 represents the side pieces of the mold, and

'3 represents the end pieces thereof. Thesepieces stand in vertical positions, so that when they are brought together, as shown in Fig. 1, they will form a closed rectangular mold.

The pieces are held in vertical positions by means of the dovetailed. right-angled extentailed Ways in the upper surface ofthe main and forth with thepieces 2 and 3 of the mold by means of a lever 5, that isl pivoted at 6 substantially below, the center ,of the mold and that projects asufiicient distance beyond J ointedly connected with the lever bat points 7 and- 8 equidistant from the pivot 6 are two levers 9 and 10, that extend in opposite directions from the lever 5, and theyaremoved endwise when the lever 5 is rocked upon its pivot. l The. outer ends of these links areconnected to shorter links 11 and 12, said shorter links being attached to the end pieces of the at 13and l t-to the ends of togglelevers 15 and 16, respectively, said toggle-layers being attached at their outer ends-to the side pieces 2 of the mold, the points of attachmentof these toggle-levers being near the ends of said pieces and being at the lower ends of' extene 'sions 160 on said side pieces, said extensions appearing clearly in Fig. 10f the drawings. From this description. it will be seen that when the lever 5 is rocked in the direction of the arrowin Fig. 2. the: links 9 a'ndlO will move outwardly, which movement will result in separating the side and end pieces of the mold.

desired to make the building-blocks hollow, and for this purpose I place within the mold the two core-pieces 17, said pieces being so 7 located as to leave a continuous space about and between them within the mold. Of

these cores could be made small or could be omitted altogether. As shown, they afiegradually tapered toward their upper surfaces, so

raised without damage thereto.

The bottom part of the mold is occupied by a lifting-frame 18, (shown in detail in Figs. 5 and. 6,) said frame fitting closely about the frame, so that they can slide back and forth therein. The extensions t are moved back mold. The links 9 and 10 are also connected sions 4, which extensions aremounted in dpvethe, press'to give the necessary leverage; H

course where extreme strength is essential that they will permit the molded block to be cores 17 and also fittingiwithin the side and end pieces of the mold when the latter are moved to their closed positions, as is shown in Fig. 3.

The building-block is formed of concrete or other suitable material, which is introduced into the mold in a plastic condition, the said material completely fillingthe mold round about the cores 17 After molding it is necessary to set the blocks aside, so that they may harden or set. In order'to take the blocks from the mold, I provide means for lifting bodily and in a horizontal plane the liftingframe 18, said means being shown in Fig. 3 of the drawings and consisting of levers 19, that are pivoted near their centers to depending brackets 30 on the lower side of the main frame 1, said levers having pivoted to their outer ends the lifting bars or rods 21. These bars or rods 21, a detailed iew of which is shown in Fig. 7, are provided on their upper ends with extended head pieces 22, upon which the outer ends of the lifting-frame 18 rest. To the inner ends of the levers 19 is connected, by means of pin-andslot connections, a link 23, which is adapted to be moved up and down by any suitable mechanism. When moved downwardly from the position shown in Fig. 3, the outer ends of the levers 19 are elevated, with the result that the frame 18 and the block that has been molded thereon are lifted upwardly, so that the' frame and-block may be removed from the press to a convenient point where the block can harden. In order that the lifting-board, with the block thereon, may be conveniently lifted from the floor or shelf where it may be deposited, I

place cleats 24 on the lower side of the lifting-frame, said cleats being of such thickness that workmen can easily insert their fingers under the frame.

- The operation of the press is as follows: With the parts in the position shown in Fig, 3 the mold is filled with the material from which the block is formed. VVhenasuflicient quantity of the material has been introduced, the lever 5 is rocked, so as to move the side and end pieces of the mold apart, which movement will permit the block to be lifted without damage to its exterior surfaces. The rod 23 is then depressed, which ope ation results in lifting the frame 18, with the block thereon, out of the mold, so that they may bere- I moved. I

The structure thus described enables me to duced are square on their outer faces, so that they willform a perfectly plumb wall when erected one on another.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent. is

1. In a device for molding blocks, a main frame, slideways formed in said frame,'laterally-movable pieces guided in said slideways, said pieces forming a mold for the blocks. a main lever pivoted to said frame, linksjointedly connected to said lever on opposiiesides of its pivotal point, connections between said links and the end pieces of the mold, and tog gle-levers connecting the said links with the side pieces of the mold, whereby when the main lever is operated the side and end pieces will be separated from each other, for the pin pose specified.

2. In a device for molding blocks, amain frame, slideways formed in said frame, laterally-movable pieces guided in said slideways, said pieces forming a mold for the blocks, a main lever pivoted to. said frame, links jointedly connected to said lever on opposite sides of its pivotal point, connections between said links and the end pieces of the mold, togglelevers connecting the said links with the side pieces of the mold, a lifting-frame in the bottom of the mold upon which the blocks are formed, and means for lifting said frame so that it and the block thereon may he removed from the mold. p

3. In a device for molding blocks, a main frame, slideways formed in said frame, laterally-rrovable pieces guided in said slideways, said pieces forming a mold for the blocks, a mainlever pivoted to said frame, links jointedly connected to said lever on opposite sides of its pivotal point, connections between said links and the end pieces of the mold, togglelevers connecting the said links w th the side pieces of the mold, a lifting-frame within the mold upon which the blocks are formed, levers pivoted on the main frame beneath the mold, lifting-bars pivoted to said levers and projecting below the said lifting-frame, and a movable link connecting the said pivoted levers.

In testimony whereof I affix my signature in the presence of two witnesses.

JAMES HIERRIN.

Witnesses: I

BURCH D. HUGGINS, A. H. JOHNSON. 

